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Flink (technical principle (transformation operators (keyby, apply, map),…
Flink
technical principle
Ventanas
windows action
tumbling
sliding
session
splitting standard
count windows
time windows
streaming data
source operator
transformation operators
keyby
apply
map
sink operator
streaming data flow
parallel dataflow
operator chain
Key Roles
Job Manager
TaskManager
Data stream
ResourceManager of YARN
YARN container
client
key features
Exactly one
checkpoint mechanims
Roles
Barrier
multiple barriers
merged chekpoint
checkpoint
checkpoint coordinator
operadores
intermediate
sink
source
status snapshot
low latency
HA
scale out
hadoop compatibility
componentes
storm
I/O
fusionInsight
web ui
-componentes
mandatory
YARN
Zookeeper
HDFS
optional
kakfa
DataStream
definición
data streams in aplications
unchangeable collection of duplicate data
ciclo de vida
transformación
Data sink
Kafka data
text
HdFS files
Data source
batch processing
stream processing